Cold Storage

Oracle Text

3: Exile target creature you control.

Sacrifice Cold Storage: Return each creature card exiled with Cold Storage to the battlefield under your control.

Card Rulings

10/4/2004 If this card leaves the battlefield, the cards it exiled remain exiled.
10/4/2004 If it exiles a token creature, the token ceases to exist and will not return.
4/1/2008 For a time, the second ability returned all cards exiled by it to the battlefield, regardless of what types they had while exiled. It has been restored to its original functionality, so only cards that actually have the type Creature will get returned.